Waist flash is a case of external injury, sometimes it is a common action in daily life inadvertently, such as getting up too fast, too hard, or sitting on the sofa for a long time suddenly get up, or even have obvious sneezing process may lead to flash back. If there are heavy objects, the possibility of flashing waist is even greater, there is a characteristic that the strength of the muscles around the lumbar spine during these movements is not protective enough for the lumbar spine, a slight inappropriate movement can cause flashing waist, acute injury to the muscles around the waist, or small joint disorders that lead to pain and limited range of motion of the waist. In this case, you should rest in bed as much as possible for a period of time, and after the pain is relieved, carry out functional rehabilitation exercises for the lumbar back muscles with the Little Swallow Fly and the Five Point Support Method.